Reports Swing components that fail to provide accessibility context. It will be very hard to use such components for visually impaired users who use screen readers.

Example:

ListCellRenderer<String> renderer = (list, val, index, sel, cell) -> {
  JPanel panel = new JPanel();
  return panel;
};

To fix the problem, you should either call setAccessibleName() on the returned JPanel or override its getAccessibleContext() method.